80746680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{97}}^1\times {\mathrm{991}}^1$

素因数の和:1109

約数の個数: 128

約数和(自身を含む): 279982080

約数和(自身を除く): 199235400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 97, 105, 120, 140, 168, 194, 210, 280, 291, 388, 420, 485, 582, 679, 776, 840, 970, 991, 1164, 1358, 1455, 1940, 1982, 2037, 2328, 2716, 2910, 2973, 3395, 3880, 3964, 4074, 4955, 5432, 5820, 5946, 6790, 6937, 7928, 8148, 9910, 10185, 11640, 11892, 13580, 13874, 14865, 16296, 19820, 20370, 20811, 23784, 27160, 27748, 29730, 34685, 39640, 40740, 41622, 55496, 59460, 69370, 81480, 83244, 96127, 104055, 118920, 138740, 166488, 192254, 208110, 277480, 288381, 384508, 416220, 480635, 576762, 672889, 769016, 832440, 961270, 1153524, 1345778, 1441905, 1922540, 2018667, 2307048, 2691556, 2883810, 3364445, 3845080, 4037334, 5383112, 5767620, 6728890, 8074668, 10093335, 11535240, 13457780, 16149336, 20186670, 26915560, 40373340, 80746680]

約数ペア:

[(1, 80746680), (2, 40373340), (3, 26915560), (4, 20186670), (5, 16149336), (6, 13457780), (7, 11535240), (8, 10093335), (10, 8074668), (12, 6728890), (14, 5767620), (15, 5383112), (20, 4037334), (21, 3845080), (24, 3364445), (28, 2883810), (30, 2691556), (35, 2307048), (40, 2018667), (42, 1922540), (56, 1441905), (60, 1345778), (70, 1153524), (84, 961270), (97, 832440), (105, 769016), (120, 672889), (140, 576762), (168, 480635), (194, 416220), (210, 384508), (280, 288381), (291, 277480), (388, 208110), (420, 192254), (485, 166488), (582, 138740), (679, 118920), (776, 104055), (840, 96127), (970, 83244), (991, 81480), (1164, 69370), (1358, 59460), (1455, 55496), (1940, 41622), (1982, 40740), (2037, 39640), (2328, 34685), (2716, 29730), (2910, 27748), (2973, 27160), (3395, 23784), (3880, 20811), (3964, 20370), (4074, 19820), (4955, 16296), (5432, 14865), (5820, 13874), (5946, 13580), (6790, 11892), (6937, 11640), (7928, 10185), (8148, 9910)]